Fixing device for frame part machining

Abstract

The utility model provides a fixing device for frame part machining. The frame part machining fixing device comprises a bottom plate, a first boss and a mounting plate, the first boss and the mounting plate are sequentially arranged upwards from the upper surface of the bottom plate, a first mounting hole used for being fixed to a part is formed in the mounting plate, and a first mounting face used for being attached to a second mounting face of the part is formed in the upper surface of the mounting plate. A U-shaped groove used for being fixed to a machine tool workbench is formed in the bottom plate, and height-adjustable adjusting columns are arranged on the periphery of the bottom plate. The utility model overcomes the defects of the existing conditions, improves the product percent of pass and the processing efficiency, and meets the requirements of scientific research and production.

Description

Technical Field

[0001] The utility model relates to the technical field of parts processing, in particular to a frame-type parts processing and fixing device. Background Art

[0002] like Figure 1 、 Figure 2 As shown, a certain type of frame component 10 is made of 2A12 material. Its inner cavity forms multiple cavities with thin, unevenly thick walls. Multiple steps of varying heights are designed on the component, such as a cross rib connecting the components. This component 10 has a second mounting surface 101 on one side and a third mounting surface 102 on the other. The flatness requirements for the first and second mounting surfaces 101 and 102 are no greater than 0.005 mm, the surface roughness no greater than Ra0.4, and the parallelism of the two mounting surfaces no greater than 0.008 mm.

[0003] During the processing, equal-height support and fixation are adopted. The points of force and clamping during processing are relatively far apart. The cutting force is large when the tool cuts the workpiece. The workpiece is subjected to large force but lacks rigidity, resulting in deformation and slight shaking, which affects the dimensional accuracy, shape accuracy and surface quality of the workpiece, reduces processing efficiency and lowers the qualified rate. Utility Model Content

[0004] The purpose of the utility model is to provide a frame type parts processing fixing device, which can not only play a fixing role, but also make the product clamping stable, so as to achieve the purpose of improving the qualified rate and production efficiency.

[0005] The technical solution of the utility model is: a frame-type parts processing and fixing device, including a base plate, a first boss and a mounting plate arranged in sequence upward from the upper surface of the base plate, the mounting plate is provided with a first mounting hole for fixing to the part, the upper surface of the mounting plate forms a first mounting surface for fitting with the second mounting surface of the part, the base plate is provided with a U-shaped groove for fixing to the machine tool workbench, and height-adjustable adjustment columns are provided around the base plate.

[0006] Preferably, the adjusting column includes a copper sleeve and a supporting column, the bottom of the copper sleeve is fixed to the base plate, and the top of the copper sleeve is provided with a threaded hole for fixing the supporting column.

[0007] Preferably, the support column includes a screw and a fixing column connected to one end of the screw, the screw is connected to the threaded hole, and the diameter of the fixing column is equal to the diameter of the copper sleeve.

[0008] Preferably, the end of the fixing column away from the screw rod forms a cone.

[0009] Preferably, the U-shaped groove is provided on all four sides of the bottom plate.

[0010] Preferably, the mounting plate is a rectangular plate, and the first mounting holes are arranged around the mounting plate.

[0011] Preferably, through holes are provided in the mounting plate and the first boss.

[0012] Preferably, a second boss is provided on the mounting plate, and the first mounting hole is provided in the second boss.

[0013] Compared with the related art, the beneficial effects of the present invention are:

[0014] 1. Aiming at the problem that the geometric tolerance accuracy of frame parts machining is too poor and cannot meet the requirements of the drawings, this utility model designs a device for precision machining and fixing of frame parts, which overcomes the shortcomings of existing conditions, improves product qualification rate and machining efficiency, and meets the needs of scientific research and production;

[0015] Second, the utility model is designed to fix the bottom plate of the entire device, and is designed to fix the mounting plate and adjustment column of the parts. It can not only play a fixing role, but also make the product clamping force small and uniform, so as to achieve the purpose of improving the qualified rate and production efficiency.

[0016] 3. The present invention adopts a combination of auxiliary support of the adjustment column and fixed support of the mounting plate and the first mounting hole, which is safe and reliable and will not cause deformation;

[0017] Fourth, the utility model greatly improves the product qualification rate and production efficiency, and has higher precision and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a certain type of frame part from the first perspective;

[0019] Figure 2 This is a structural diagram of a certain type of frame part from the second perspective;

[0020] Figure 3 This is a schematic diagram of the structure of the frame parts processing and fixing device provided by the utility model;

[0021] Figure 4 This is a schematic diagram of the frame parts processing and fixing device provided by the utility model when in use.

[0022] In the accompanying drawings: 1. Base plate; 11. U-shaped groove; 2. First boss; 3. Mounting plate; 31. First mounting hole; 32. First mounting surface; 33. Second boss; 4. Adjusting column; 41. Copper sleeve; 42. Support column; 421. Screw; 422. Fixed column; 5. Through hole; 10. Part; 101. Second mounting surface; 102. Third mounting surface; 103. Second mounting hole; 104. Third mounting hole. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments and features of the embodiments of the present invention may be combined unless they conflict. For ease of description, the words "upper," "lower," "left," and "right" appear below merely to indicate the directions of upper, lower, left, and right in the accompanying drawings and do not limit the structure.

[0024] like Figure 3 As shown, a frame part processing and fixing device provided in this embodiment includes a base plate 1, a first boss 2, a mounting plate 3, an adjustment column 4 and a through hole 5.

[0025] The bottom plate 1 is a rectangular plate with four straight chamfered corners. U-shaped grooves 11 are provided on the four sides of the bottom plate 1 for fixing the bottom plate 1 on the workbench of the airport by T-bolts.

[0026] The middle portion of the base plate 1 is connected to a first boss 2 and a mounting plate 3. The first boss 2 is cylindrical and located on the upper surface of the base plate 1. The mounting plate 3 is a rectangular plate with four straight chamfered corners and is located on the upper surface of the first boss 2.

[0027] The top surface of the mounting plate 3 is provided with four second bosses 33, located at the four corners of the mounting plate 3. Each second boss 33 defines a first mounting hole 31, which can be a threaded hole. The top surface of the mounting plate 3 forms a first mounting surface 32, which requires precision machining to ensure flatness.

[0028] The mounting plate 3 and the first boss 2 are provided with through holes 5 to reduce the weight of the fixing device.

[0029] The base plate 1 is surrounded by height-adjustable adjustment columns 4. The adjustment column 4 includes a copper sleeve 41 and a support column 42. The bottom of the copper sleeve 41 is fixed to the base plate 1, and the top of the copper sleeve 41 is provided with a threaded hole for fixing the support column 42. The support column 42 includes a screw rod 421 and a fixing column 422 connected to one end of the screw rod 421. The screw rod 421 is connected to the threaded hole. The diameter of the fixing column 422 is equal to the diameter of the copper sleeve 41 to ensure the aesthetics. In this embodiment, the fixing column 422 forms a cone at one end away from the screw rod 421, and the upper end of the cone is formed with a sharp corner, which can be inserted into the third mounting hole 104 on the part 10 (such as Figure 4 In addition, the end of the fixing column 422 away from the screw rod 421 can also be set to a plane that fits the part 10.

[0030] like Figure 4 As shown, during clamping, first fix the fixture to the appropriate position on the machine tool workbench, then place the second mounting surface 101 of the workpiece on the first mounting surface 32, and adjust the height of the support column 42 so that the sharp corner on the fixing column 422 inserts into the third mounting hole 104 on the workpiece. Then align the second mounting hole 103 on the workpiece with the first mounting hole 31, and then install the bolts to complete the fixation of the workpiece. Start the machine tool and process the third mounting surface 102 on the workpiece. After completion, loosen the bolts fixing the workpiece to the fixture, then flip the workpiece 180°, and then adjust the height of the support column 42 so that the sharp corner on the fixing column 422 inserts into the third mounting hole 104 on the workpiece. Then align the second mounting hole 103 on the workpiece with the first mounting hole 31, and then install the bolts. Then start the machine tool again and process the second mounting surface 101 on the workpiece. This continues until the processed product part 10 is completed.

[0031] After testing, the processed part 10's nine high-precision mounting surfaces met design requirements for geometry, flatness, perpendicularity, parallelism, and surface roughness. This increased the product qualification rate from 15% to 90%, boosting production efficiency by 80%, while also maintaining high precision and stability.

[0032] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A frame parts processing and fixing device, characterized in that: The invention comprises a base plate (1), a first boss (2) and a mounting plate (3) sequentially arranged upward from the upper surface of the base plate (1), wherein the mounting plate (3) is provided with a first mounting hole (31) for fixing to a part, the upper surface of the mounting plate (3) forms a first mounting surface (32) for fitting to a second mounting surface of the part, the base plate (1) is provided with a U-shaped groove (11) for fixing to a machine tool workbench, and height-adjustable adjustment columns (4) are provided around the base plate (1).

2. The frame parts processing and fixing device according to claim 1, characterized in that: The adjusting column (4) comprises a copper sleeve (41) and a supporting column (42); the bottom of the copper sleeve (41) is fixed on the bottom plate (1); and the top of the copper sleeve (41) is provided with a threaded hole for fixing the supporting column (42).

3. The frame parts processing and fixing device according to claim 2, characterized in that: The support column (42) comprises a screw rod (421) and a fixing column (422) connected to one end of the screw rod (421), the screw rod (421) is connected to the threaded hole, and the diameter of the fixing column (422) is equal to the diameter of the copper sleeve (41).

4. The frame parts processing and fixing device according to claim 3, characterized in that: The end of the fixing column (422) away from the screw rod (421) forms a cone.

5. The frame parts processing and fixing device according to claim 1, characterized in that: The U-shaped groove (11) is provided on all four sides of the bottom plate (1).

6. The frame parts processing and fixing device according to claim 1, characterized in that: The mounting plate (3) is a rectangular plate, and the first mounting holes (31) are arranged around the mounting plate (3).

7. The frame parts processing and fixing device according to claim 1, characterized in that: A through hole (5) is provided in the mounting plate (3) and the first boss (2).

8. The frame parts processing and fixing device according to claim 1, characterized in that: A second boss (33) is provided on the mounting plate (3), and the first mounting hole (31) is provided in the second boss (33).

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